Reinforced plastic patch for walls



June 3, 1952 F, M, ESUCK 2,598,984

REINFORCED PLASTIC PATCH FOR WALLS Filedet. 29, 194e" I5 If 'J2 IZ 4 3 I IZ zo' /Iy IN V EN TOR.

Patented June 3, 1952 UNITED PATENT CFF/ICE REINFQBQED PLASTIC PATCH FOR WALLS Frederick M. Eslick, Auburn, Ala.

Application October 29, 1946, Serial No- 706,453

Claims.

The present invention relates tov improvements iii ooiiorete Plaster patches and methode .for installing Same ariol more particularly reiaiee to ali iiiioroveii. ratori arid. the method of producing saine for use over cracks in the walls or cellars or other places toA the end that such cellars may be Waterproofed from the inside. Y

Another object of the invention is to provide an improved patchA and method of patching crack-s or other imperfections in Walls in which the stepsof the method will be simple'and their execution comparatively easy in that the same may be achieved by the uninitiated Without previous experience and. with implements usually found at hand so that emergency patches may be setup in a very short time.

A furtheii object of the invention is to provide an improved patch and method of patching the same in which a strong bond of' the. patch matef rial is made. with the. body of the wall upon which the patch is mounted and in which the matter of permanency of the patch is secured.

With the foregoing and other objects in view the invention will be more. fully described here-` maf-ter and more particularly pointed out in the appended claims.

In. the drawings in. which, like Darts are denoted by the same reference characters4 throughout the several views,

1 is a fragmentary vertical. section of a Wall. erepareoi for installation of onel of the patoh anchors with a Getterv loer poised beyond the saisie; i

F' a ie a similarview showing the wedge in. relaties io the terireys,

Eis. 31. similar Viewy showing the anchor arid natale. eomeletels installed;

Eis i is a loiesiiiidiiial; Seeifiori taken through the Wall arid; eaieii ori. tire i ifi. or Fie.r 3;

v, ciro al new taken tir-reirse. a oeilar construction, shouting; the iiiethool-V of resetting a corrierpatois.

6Y is a View Similar to Fis, i showing. a modification in which the anchors are integral with tire reiriiorei-rie rod.;

ities-, a d 8 are similar views Siioiiiiiie modirieti. forros .i arioiiore made from. tire reigioroirie rod;

"Fie- 9 iS a plan View of a, moeiiieii. of, anchor; l..

Fia 10 is an edge View of the salire;

Fiss.e .1.1 and. 1.2 are plan. views of further modified foriire of anchors.,

Referring 31.013?. Pafulrly '09.12119 drawings l0 designates a Wall, of. a oellar or other oomiiariiiieiii requiring a ratori. and Il, represents a hole or socket which is one of a number which are drilled or otherwise produced in the wall in and about the* area ot thecrack. These holes may for instance be of the order ofv x 1/2. Such holes are in any suitable number. In Fig. 4 three such holes are provided although any number may be used. The holes are adapted to receive anchors and then to be nlled with cement; or such holes or sockets may be initially filled with cement or the like and the vanchors subsequently may be driven into the same so as to become embedded in the cement body. Various forms of anchors are used. For. instance cotter keys I2 and wedges I3 are shown in Figures l to 5 inclusive.

A reinforcing rod I4 is clamped in the eyes I5 of the cotter ,keys which are of resilient metal r with the two legs partly open as indicated at IE5Y to initially admit the point of the wedge I3 in the act of initially assembling these two elements as shown' in 2- preparatory to driving the same into thel body of cementy II as shown in Fig. 3. The cement t1 will ofcourse offer resistance to the passage of the Wedge I3 especially as the blunt. edge of the Wedge I3 is presented thereto and consequently the spring legs of the cutter keys I2; will be driven relatively overI the inclined divergent. Walls of the Wedge I3 with the result that the legs will be spread outwardly' as shown in Fig. 3 thus performing two functions. In the rst place the lower outer edges of the spring legs of the cotter keys may bey caused by wedge action to iirmly contact the opposite walls of the. sockets Il and thus tend to bind the anchor in place.. Secondly theoutwardly spreadv legs of the cotterkeys I2 afforda dovetailed arrangement which cooperates with the masses of cement in the, outer portions of they sockets I3 to coniine the anchor. against being pulled outwardly.

The anchors may-be installed in place by ham,- meriiis iiD-ori the outer portions oiJ the. eyes, I5 of. the cotte-r izeiie-r Error. to.. driifiria the anchors in plaeeor subsequently, the reinforcing, rod, li

may be passed through the eyes I5. However, this operation will usually be performed after all of the anchors are in place for the reason that in the initially sprung condition of the cotter keys as shown in Fig. 2 the eyes I5 will be smaller in diameter than that of the rod I4 so that the effect of the wedge entering between the legs of the cotter keys has the third function of opening the eyes I5 sufliciently to receive a reinforcing metal or other rod I4 of a desired diameter, and yet retain sufficient purchase upon that rod to grasp the same frictionally and resiliently. f .Y

Finally the body I8 of cement, plaster, concrete or other suitable material is placed or molded in or about the socket, the anchors and the reinforcing rod I4 to the thickness and length desired whereby to damp-proof the wall and to Vrepair the crack and restore the wall to an initially repaired condition. The wire I4 may be mutilated if desired or may have projections thereon in order to better interlock with the concrete body I8.

Plaster may be made with Portland or hydraulic cement and with steel wool embedded therein. It is recommended that the wool be present in the proportion of approximately 1/0 by weight. Such plaster should be worked under l and around the wire and anchors with the body I8 covering the wire a quarter inch or more. The patch thus becomes a piece of reinforced concrete securely anchored to the wall. The edges of the plaster will not crack or split off Aas they are reinforced with the steel wool.

The reinforcing spreads the strain developing at any one point over a much larger area and prevents the plaster from cracking. 'Ihe plaster itself is attached to the wall by adhesion but it is further held and reinforced by the anchors and the rod I4.

When a protruding patch is undesirable the patch may be made in a groove about 1A," square or larger and finished flush with the wall. The sockets or holes II may be about 2to 4 inches apart depending upon the condition of the wall and the pressure expected. Neat PortlandV cement, glue, pitch and the like may be used as an adhesive.

Most cellars leak only after heavy rains but it is not always practicable to wait for dry weather to make repairs as leaks have to be stopped. These leaks can usually be stopped by caulking with hemp, rags, etc., but the sameV soon rot so that the leak returns, making it useless to plaster over the crack. By caulking these cracks with steel wool, preferably stainless,

mixed with some substance that will not rot or veasily wash out (hydraulic cement plaster, pitch, plumbers putty, etc.) the work willV be permanent so that the wall may be patched and finished. y

So far as Fig. 5 is concerned, there is shown therein an anchor disposed in a hole or socket l IIB in the corner between the walls II)a and Ib.

while the patch I8a is disposed across the corner and lodges against both walls I0 and Ib. Y

Referring more particularly to Figure 6 the reinforcing rod I4a is so bent as to have anchors I2a integrally formed therefrom by offsetting the rod into substantially U-shape. Such anchors may occur at intervals from 3 to 4"apart.

According to Figure 7 the reinforcing rod I4b is made in sections or short lengths and the ends I2b and I2c are disposed parallel to one another in the sockets with inturned offset terminal flanges.

In Figure 8 the reinforcing rod I4c is also made in sections with ends I2d and I2e within inturned flanges spaced and opposed to one another and arranged in the sockets.

Referring more particularly to Figures 9 and l0, I9 designates anchors made from sheet metal with the leg mutilated as indicated at 2U and 2| by stamping triangular spurs therefrom and bending the same outwardly in opposite directions about their base lines. An opening 22 is provided for the reinforcing rod.

Referring more particularly to Figure 11 a wire staple form of anchor is used having the legs 23 and 24 having bulged portions 25 and 26 and outturned terminals 21 and 28. The anchor is made from spring Wire returned upon itself to form the legs and other portions noted and the reinforcing rod is adapted to t in the space between the upper portions of the legs. The bulged portions 25 and 21 serve to compress the legs when the same is being inserted in place and they also form with adjacent parts angular constructions for bonding better with the cement.

Referring more particularly to Figure l2 a staple is made from a flat piece of spring metal having the legs 29 and 30 which are rotated upon a longitudinal median line whereby to produce a twisted formation in the flat ribbon construction or a spiral effect which will also better bond with the concrete.

Friction and adhesion will hold the concrete plug in the rough hole or socket. For additional strength the hole may be made deeper or the bottom of the hole may be enlarged. The anchors will not pull out of the concrete plug. There is little advantage in having the rod firmly held by the anchor as the surrounding concrete binds the two firmly together. It would be better if the cement was thin enough so that the wedge reached the bottom of the socket before the legs of the cotter keys spread very much; otherwise some of the cotter keys might jam before reaching the desired depth.

While I have disclosed herein the best form of the invention known to me at the present time I desire it to be understood that I reserve the right to make changes and modifications in the herein described embodiment of the invention provided such changes fall within the scope of the following claims.

What is claimed is:

1. An improved patch for repairing a cracked wall comprising a cotter key having an expansible eye with resilient relatively movable legs depending therefrom and extending into'a socket in the wall, a wedge having its narrower end received between the legs without initially spreading the same, said -wedge having its wider end supported in the socket to resist movement of the same while the cotter key is driven over the wedge,V said legs being spread by the wedge and in frictional contact with the opposite walls of the socket, a reinforcing rod extending through said eye, and a body of plastic patch material extending about the rod and key and overthe 'cracked wall.

3. An improved patch as claimed in claim 1 in 2,598,984 5 which the spread legs of the cotter key form Y REFERENCES CITED a' dovetail arrangement reacting against the The following references are of record in the cement 1n the outer part of the socket to prevent me of this patent: withdrawal of the anchor.

4. An improved patch as claimed in claim 1 in 5 UNITED STATES PATENTS which the cotter key has legs with bulged por- Number Name Date tions and out-turned terminal ends. 2,079,664 Seigle May 11, 1937 5. An improved patch according to claim 1 in 2,128,480 Wertz Aug. 30, 1938 which the cotter key is made from a hat ribbon of metal bent U-shape to form legs and with the 10 FOREIGN PATENTS legs bent or twisted longitudinally. Number Country Date FREDERICK M, ESLICK, 552,592 Great Britain Apr. 15, 1943 

